A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6240-00-223-5058
NSN 5905-01-014-3244
NSN 5910-01-073-5582
NSN 5895-01-205-6194
NSN 5950-00-224-1457
NSN 6130-01-412-1320
NSN 5960-00-880-4404
NSN 6135-01-459-6424
NSN 6320-01-194-1253
NSN 6150-00-878-7470
NSN 5975-00-054-2496
NSN 6145-00-866-5666